Thill-coupling.



QUT @web y H. CHENAULT.

THiLl. COUPLING.

APPLICATION FILED APR. I2. 1917.

1,245,681 Patented Nov. 6, 191.7.

I Z6/ff' 1 ff aww/nto@ y @www l HENRY CHENAULT, 0F ALLnNsvILLn, KLNTUCKY.

THILL-COUPLING.

Specification of Letters Patent.

Patented Nov. 6, 1917.

Application mea Api-i112, 1917. semaine. islam.l

To all ywhom t may concern Y Be it known that I, HENRY CHENAULT, a citizen of the United States, residing at Allensville, in the county of Todd, State of Kentucky, have invented a new and useful Thill-Coupling; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will en.- able others skilled in the art towhich it appertains to make and use the same.

This invention relates to an improved thill coupling between the'thills of the shafts and the front axle of a running gear, and an object of the invention is to provide a simple, eflicient and practical coupling, which may be manufactured at a small cost and sold for a reasonable profit.

-A further object of the invention is to pro v vide a coupling of this kind consisting of three parts, two of which are adapted to be clamped to the axle by the third part, which in turn pivotally clamps a loop of the thill plate or bar to the coupling.

A further object of the invention is to provide the third part of the coupling with bolts extending through the clamping parts on the axle, and one of said bolts is designed to pass through the axle, in combination with means on the third part to guide the same into clamping engagement with its attendant part.

In practical fields, the details of construction niay necessitate .alterations falling within the scope of what is claimed.

The invention comprises further features and combination of parts, as hereinafter set forth, shown in the drawings, andclaimed.

In the drawings Figure 1 is a View of the improved thill coupling, as applied to the thill and the axle of the running gear, which axle is shown in section.

Fig. 2 is a sectional view on line 2-2 of Fig. 1.

Fig. 3 is a vertical sectional view through the thill coupling, showing a portion of the thill iron or plate in elevation and partly in section.

Fig. 4 is a plan view partly in section on line 4 4 of Fig. 1.

Fig. 5 is a detail perspective view of the part of the thill coupling for pivotally connecting the loop of the thill iron to the coupling.

Referring more especially to the drawings, 1 designates an aXle of the running vided witha downwardly extending lug 7. The upper part of the plate 3 is constructed with a curved portion 8, which overlies and engages the upper curved surface 9 of the right angle extending flange 6, which is p roaxle bolster. The body of the plate 3 has an aperture 10. Formed transversely of the flange 6 and adjoining the lug A7 is an aperture or opening 11. The part 4 of Vthe couplingcomprises a body 12, with which is formed a plate 13., The lowerv portion of the.l

plate 13 has a right angle extending flange 14 engaging under the axle 1 in opposition to the flange 6, and on the under surface of the .flange 14 intermediate its ends is a lug 15, which, as shown merges into the body 12. The upper part of the plate 13 has a curved portion 16 overlying and engaging theupper curved surface of the' axle bolster in a positionopposite the curved portion of the plate 3. By this construction of the plates 3 and 13, the axle bolster is held more secure on the axle. The upper part of the body 12 has a T-shaped dove tail slot or opening 17, the inner portion of which adjoins a cylindrical opening 18. The lower'partof the body 12V is provided with a similar T-shaped dove tail guide opening 19, whichmerges into a cylindrical opening 20 which extends through the iange 14 and its adjoining lug 15. The part 5` of the coupling is in the form of a clamping body, the inner face of which is V-shaped as shown in dotted lines in Fig. 4, and as also shown in Fig. 5. This V-shaped face of the clamping body 5 engages a similar shaped face of the body 12. The adjacent faces of the two bodies 5 and 12 are supplied with transversely disposed recesses 21 and 22, which are semi-circular in cross section, and the walls of these recesses toward their outer ends diverge or Hare outwardly, as shown in Fig. 4 clearly, thereby permitting looseness of play of a pivot pin or bar, which is designed to engage said recesses. The upper and lower parts ofthe V-shaped face 23 of the body 5 are provided with T-shaped dove tail projections 24, to engage the T-shaped dove tail openings 17 and 19. The projections 24 have cylindrical extensions or bolts 25, which extend through the @timings 1Q all@ ll, 1S and 20. The upper bolt 25 extends through the axle bolster, as shown at 2G. The rear ends of said bolts 25 have nuts 2T threaded thereon, which when tightly screwed home, draw the adjacent faces of the clamping bodies 5 and l2 together, and at the same time clamp the plates 13 and -3 to the forward and rear faces of the bolster and the axle respectively. The inner face of he clamjiing body 5 adjacent the projections 24e is provided with tapering lugs 2S which enter similar bores 29 of the body l2, thereby more firmly holding the clamping body 5 in place, A. suitable thill iron 30 (which is secured to a shaft 32 by means of the bolts 3l) is provided, and the rear lower end of the iron terminates in a loop 33. The transverse portion 34C of the loop 33 constitutes a pivot pin, the opposite ends of which are larger in diameter than its central portion. ln other words, the pin 3st tapers from its opposite ends toward its center and is fulcrumed in the opposing recesses 2l and 22 of the bodies 5 and l2 in such wise as to afford a slight lateral looseness of play for the thill iron, yet permitting the thill iron to pivot vertically. rllhe outer surfaces of the plates and 13, respectively, are provided with grooves 35 and 3G, which are designed to receive suitable clamping straps, (not shown) of a running gear (not shown).

rEhe invention having been set forth, what claimed as new and use-ful, is :d

l. ln a thill coupling, a pair of clamping a eno-aging the forward and rear surfac respectiveljy of an axle and its bolster, an axle Aand a superimposed bolster between sait plates, a thill iron provided with a loop having a transverse pivot pin forming an integral part of the loop, a clamping body provided with integral projections passing through said plates and having means threaded thereon to hold said parts together, said clamping bodyT and one of the adjacent plat-es having' tapering adjoining recesses in which the pivot pin of the loop is mounted to Ihave looseness of play therein.

tes

2. In a thill coupling, the combination of an axle and a superimposed axle bolster, of clamping plates engaging the forward and rear faces respectively of the axle and bolster, one of said plates having a` body, a clamping body engaging the first body, both bodies having adjoining engaging V` shaped faces, the V-shaped face of the clamping body having threaded projections passing through said plates, one through the axle bolster, means engaging the threads of the projection to clamp the parts together, a thill iron having a loop provided with a transverse pivot pin portion pivotally mounted between the adjacent faces of both bodies.

3. ln a thill coupling, the combination of an axle and superimposed axle bolster, of a pair of plates engaging the forward and rear faces, respectively, of said axle and its bolster, said plates having upper and lower flanges overlying the upper and lower portions respectively of the bolster and said axle, one of said plates having a body, a thill iron having a loop provided with an integral transversely disposed pivot pin which tapers from the outer end toward the center, a clamping body engaging the forward face of the first body and provided with projections having their rear ends threaded, nuts on said ends to clamp the parts together, the adjacent faces of the two bodies having adjoining recesses substantially conforming in shape with and recei ring said pivot pin of the thill loop, in order to permit lateral looseness of play of the thill iron as a vertical pivotal movement, and iiea is for reinforcing the clamping connection of the two bodies.

ln testimony whereof l have signed my name to this specification in the presence of two subscribing witnesses.

HENRY CHENr/XULT.

lllitnesses Tiros. PEPPER, J. M. RILEY.

Copies of this patent may be obtained for ve cents each, by addressing the Commssioner of Patents, Washington, D. C. 

